Home / 1,405,721.25-1,940,245.25-802,459.17

Finding the Fourth Proportional to 1,405,721.25, 1,940,245.25 and 802,459.17

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Solution

The fourth proportional to 1,405,721.25, 1,940,245.25 and 802,459.17 is: 1,107,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,721.25 : 1,940,245.25 = 802,459.17 : x
  2. Step 2: Convert to fraction form
    1,405,721.25/1,940,245.25 = 802,459.17/x
  3. Step 3: Cross multiply
    1,405,721.25x = 1,940,245.25 × 802,459.17
  4. Step 4: Simplify right side
    1,405,721.25x = 1,556,967,588,899.15
  5. Step 5: Solve for x
    x = 1,556,967,588,899.15/1,405,721.25
  6. Step 6: Final answer
    x = 1,107,593.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.